With 7.36 official Dota API stopped working.
Waiting for the fix for now and updating stuff to 7.36.
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DPC 2022 Spring Tour

Dota Pro Circuit 2021/22 Winter Tour - All regional leagues, finals and ESL One Stockholm Major

Average number of buybacks per game by Radiant: 2.6182

Explain this to me
The page shows a hero's winrates against certain enemies, as well as winrate advantage (difference in winrate compared to overall value). Higher rank and winrate mean opponent is easier for the hero, higher R-Rank means opponent is picked often and is less effective against the hero.
HeroMatchesWinrate
grimstrokeGrimstroke23442.74%
OpponentRankRev-RankWinrateAdvantageMatchesWonLostExpected matchesDeviationPercentage
wispIo100.0057.2761.29%18.55%31191223825.81%
marsMars99.0970.9155.56%12.82%4525204236.67%
gyrocopterGyrocopter98.1836.3664.29%21.55%149510428.57%
skywrath_mageSkywrath Mage97.2737.2764.29%21.55%149511321.43%
legion_commanderLegion Commander96.369.0983.33%40.59%6514233.33%
kunkkaKunkka95.4552.7358.82%16.08%171071615.88%
terrorbladeTerrorblade94.5534.5563.64%20.90%117414-3-27.27%
leshracLeshrac93.6460.9152.38%9.64%21111013838.10%
puckPuck92.7354.5556.25%13.51%169714212.50%
storm_spiritStorm Spirit91.8286.3644.19%1.45%431924321125.58%
snapfireSnapfire90.9159.0952.63%9.89%191091815.26%
medusaMedusa90.0080.0045.16%2.42%311417211032.26%
ursaUrsa89.0910.0080.00%37.26%5416-1-20.00%
slardarSlardar88.1810.9180.00%37.26%5412360.00%
dragon_knightDragon Knight87.2781.8243.33%0.59%30131732-2-6.67%
pugnaPugna86.3680.9142.86%0.12%28121623517.86%
shadow_demonShadow Demon85.4578.1844.00%1.26%25111418728.00%
templar_assassinTemplar Assassin84.5577.2744.00%1.26%25111422312.00%
viperViper83.6430.9162.50%19.76%8539-1-12.50%
ogre_magiOgre Magi82.7347.2754.55%11.81%11651019.09%
rattletrapClockwerk81.8246.3654.55%11.81%11659218.18%
hoodwinkHoodwink80.9184.5540.74%-2.00%27111628-1-3.70%
skeleton_kingWraith King80.0076.3642.86%0.12%2191213838.10%
disruptorDisruptor79.0925.4566.67%23.93%6425116.67%
ember_spiritEmber Spirit78.1871.8244.44%1.70%1881027-9-50.00%
batriderBatrider77.2761.8246.67%3.93%15787853.33%
linaLina76.3662.7346.67%3.93%157813213.33%
baneBane75.4596.3636.11%-6.63%3613233425.56%
undyingUndying74.5540.0055.56%12.82%95410-1-11.11%
weaverWeaver73.6438.1855.56%12.82%95417-8-88.89%
shredderTimbersaw72.7339.0955.56%12.82%95413-4-44.44%
shadow_shamanShadow Shaman71.8289.0937.93%-4.81%291118181137.93%
tuskTusk70.9169.0943.75%1.01%167913318.75%
pangolierPangolier70.0094.5535.48%-7.26%3111203013.23%
sand_kingSand King69.0993.6435.48%-7.26%31112039-8-25.81%
death_prophetDeath Prophet68.1892.7335.71%-7.03%28101831-3-10.71%
juggernautJuggernaut67.2753.6450.00%7.26%10557330.00%
rubickRubick66.3673.6441.18%-1.56%1771012529.41%
earth_spiritEarth Spirit65.4533.6457.14%14.40%7439-2-28.57%
morphlingMorphling64.5532.7357.14%14.40%743700.00%
huskarHuskar63.6431.8257.14%14.40%7434342.86%
tinyTiny62.7395.4534.48%-8.26%29101940-11-37.93%
crystal_maidenCrystal Maiden61.825.45100.00%57.26%220200.00%
earthshakerEarthshaker61.825.45100.00%57.26%220200.00%
dark_willowDark Willow61.821.82100.00%57.26%220200.00%
winter_wyvernWinter Wyvern59.0926.3660.00%17.26%5324120.00%
enchantressEnchantress58.1872.7338.46%-4.28%135819-6-46.15%
tidehunterTidehunter57.2755.4544.44%1.70%94511-2-22.22%
bloodseekerBloodseeker56.3660.0040.00%-2.74%10467330.00%
chaos_knightChaos Knight55.4582.7333.33%-9.41%1551023-8-53.33%
miranaMirana54.5599.0926.92%-15.82%2671922415.38%
drow_rangerDrow Ranger53.6413.6466.67%23.93%321300.00%
lionLion53.6413.6466.67%23.93%321300.00%
nyx_assassinNyx Assassin51.8211.8266.67%23.93%3216-3-100.00%
keeper_of_the_lightKeeper of the Light50.91100.0025.93%-16.81%2772029-2-7.41%
abaddonAbaddon50.0087.2731.25%-11.49%1651114212.50%
phoenixPhoenix49.0970.0036.36%-6.38%11471019.09%
phantom_assassinPhantom Assassin48.1851.8242.86%0.12%734700.00%
night_stalkerNight Stalker47.2750.9142.86%0.12%7344342.86%
monkey_kingMonkey King46.3697.2726.32%-16.42%195141815.26%
void_spiritVoid Spirit45.4558.1837.50%-5.24%83513-5-62.50%
brewmasterBrewmaster44.5588.1828.57%-14.17%144109535.71%
queenofpainQueen of Pain43.6468.1833.33%-9.41%93611-2-22.22%
doom_bringerDoom42.7367.2733.33%-9.41%936900.00%
dazzleDazzle41.826.36100.00%57.26%110100.00%
pudgePudge40.917.27100.00%57.26%11001100.00%
troll_warlordTroll Warlord40.000.91100.00%57.26%1103-2-200.00%
bounty_hunterBounty Hunter39.098.18100.00%57.26%110100.00%
witch_doctorWitch Doctor39.093.64100.00%57.26%110100.00%
lichLich37.272.73100.00%57.26%1103-2-200.00%
jakiroJakiro36.3640.9140.00%-2.74%523500.00%
visageVisage35.4545.4540.00%-2.74%5234120.00%
necrolyteNecrophos34.5541.8240.00%-2.74%52310-5-100.00%
enigmaEnigma33.6442.7340.00%-2.74%5234120.00%
lone_druidLone Druid32.7343.6440.00%-2.74%5233240.00%
furionNature's Prophet31.8244.5540.00%-2.74%523500.00%
lunaLuna30.9156.3633.33%-9.41%6248-2-33.33%
razorRazor30.0098.1820.00%-22.74%1531213213.33%
invokerInvoker29.0966.3628.57%-14.17%72510-3-42.86%
centaurCentaur Warrunner28.1820.0050.00%7.26%2113-1-50.00%
bristlebackBristleback27.2722.7350.00%7.26%211200.00%
dark_seerDark Seer26.3624.5550.00%7.26%2113-1-50.00%
naga_sirenNaga Siren25.4522.7350.00%7.26%211200.00%
lycanLycan25.4514.5550.00%7.26%211200.00%
silencerSilencer23.6415.4550.00%7.26%2111150.00%
spirit_breakerSpirit Breaker22.7317.2750.00%7.26%211200.00%
chenChen22.7317.2750.00%7.26%211200.00%
broodmotherBroodmother20.9118.1850.00%7.26%2111150.00%
faceless_voidFaceless Void20.0019.0950.00%7.26%2118-6-300.00%
phantom_lancerPhantom Lancer19.0923.6450.00%7.26%2115-3-150.00%
elder_titanElder Titan18.1820.9150.00%7.26%2111150.00%
abyssal_underlordUnderlord17.2783.6422.22%-20.52%9277222.22%
omniknightOmniknight16.3635.4533.33%-9.41%3124-1-33.33%
antimageAnti-Mage15.4574.5516.67%-26.07%6157-1-16.67%
life_stealerLifestealer14.5575.4516.67%-26.07%615600.00%
treantTreant Protector13.6485.4514.29%-28.45%7168-1-14.29%
techiesTechies12.7350.000.00%-42.74%2023-1-50.00%
magnataurMagnus11.8290.000.00%-42.74%5052360.00%
obsidian_destroyerOutworld Destroyer10.9130.000.00%-42.74%101100.00%
alchemistAlchemist10.9130.000.00%-42.74%101100.00%
ancient_apparitionAncient Apparition9.0979.090.00%-42.74%404400.00%
oracleOracle8.1849.090.00%-42.74%202200.00%
spectreSpectre7.2765.450.00%-42.74%3032133.33%
axeAxe7.2765.450.00%-42.74%3032133.33%
clinkzClinkz5.4549.090.00%-42.74%202200.00%
venomancerVenomancer4.5528.180.00%-42.74%1013-2-200.00%
beastmasterBeastmaster3.6463.640.00%-42.74%3038-5-166.67%
windrunnerWindranger2.7390.910.00%-42.74%505500.00%
vengefulspiritVengeful Spirit1.8291.820.00%-42.74%5054120.00%
dawnbreakerDawnbreaker0.9128.180.00%-42.74%1013-2-200.00%